Jkaohiste eob eeessing i lbjik



v c. L. HAMILTON.

MACHINE FOR PRESSING FIBERS 0F WOOD PULP.

Patented Jim 13, 1922.-

APPLICATION flLED NOV.7, I919.

- tures of the invention.

i. it: STAT-es;

PATENT MACHINE non BRESSING FIBER-s or woon PULB.

To all wZwmit maycmwe-rn Be it known that I, CHARLES LAOEY H M- TLTON, acitizen of the United States, residing in Philadelphia, Pennsylvania,have invented certain Improvements in Machines for Pressing Fibers ofWood Pulp, of which the following is a specification.

My invention relates to certain improvements in machines for treatingwood fiber in the manufacturing of paper.

' One object of my invention'is to provide an apparatus for opening thefiber of wood P p e a h t is mad int pap r the paper will be tough andwill withstand considerable tearing strains.

A u h bj t Of the i veh ie is o provide a continuous apparatus foracting on th pap n n the e mpeny ns' d awings Fig. 1 is a longitudinalsectional iew of my improved apparatus for openingthe. fiber in the mami'e tur of P ll t; Fig 2 is a ee tional ,view on the line 2--2,. Fig, 1;Fig. 3 is a sectional view on theline 3 3, Fig. 1; Fig. 4' is asectional view on the line M, Fig. l; and Fig. 5 is a sectional view onthe line 5-5, Fig. 1.

1 is a cylinder having heads 2 and 3 secured thereto in any suitablemanner. In the head 2 is an inlet passage connected to a supply pipe 4having a valve 5 through which the fiber, with water, flows to theinterior of the cylinder. In the head 3 is an outlet passage 6communicating with a fixed pipe 11 in the present instance. Encirclingthe cylinder are rings 7, which rest upon flanged wheels 8 adapted tofixed bearings 9. The cylinder is turned by gearing which meshes with anannular rack or gear wheel 10 at the center of the cylinder, but it willbe understood that other means of driving the cylinder may be resortedto without departing from, the essential fea- There are suitablestufling boxes at each end so that the cylinder is free to rotate, butthe inlet pipe 4: and the outlet pipe 11 are stationary.

Within the cylinder is a series of disks 13 and 14. The disks 13 are ofa greater diameter than the disks 14- and alternate therewith, as shownin Fig. 1. Each disk has a series of holes 17 extending through it andeach disk is free to roll on the bottom of the cylinder 1. The disk 15at the feed end of the cylinder has a series of ribs 16,

Specification of Letters Patent. Patented J ne Appl n fi es e mh lei Sria e- 336,355-

wh ch t nd he hit he m ter a es. i s sharged hea th nl p p T k 3 has aseries of radial grooves and, in some nstance edtlitie le e ee at e i fthe radial grooves as shown in Fig. 4, while the disks 14 have a serieof curved pa ages 19 rmed he e n, h eh a t crape he ma er a m the bottomof the cylinder carry it to the holes 17 in the disks. The radialgtQQvcs 18 act to discharge th mat r elftewe d th per phery of. th ylnde Tllus it will be seen that the pulp, as it enters the cylinder, iscarried not Only u der he s eral d sk ut e e th o g h disks and throughthe space between the d ks s0 that the fibers ar p ess a raratedvbetweenthe disks, as well as between the disks and the cylinder, the materialeve ual y flowing out th g the ieeherse passage 6-1 Th di k 5' ha i s 16?, which are so, designed as to lift the material and discharge itthrough the outlet.

I pr ferably t rm, ee he d wi e P jection 20, which extends into'thecylinder and tends to hold the disks in proper position, insuring themovement of thematerial within the cylinder, the water in the fiberbeing non-compressible, the pressure will cause the fiber to open andseparate. Paper made from pulp treated in this manner is exceedinglytough, as the fibers retain their strength.

In the above described machine, the pulp is fed continuously through themachine so that it can be part of a system in which the flow. of thematerial is continuous. Heretofore, the practice has been to reduce thepulp in batches and these batches had to be removed before the pulpcould be pressed.

I claim:

1. The combination in an apparatus for pressing the fibers of wood pulpin the manufacture of paper, of a cylinder; means for rotating thecylinder, said cylinder having an inlet and an outlet; and a series ofdisks arranged to turn freely within the cylinder as the cylinder isrotated so as to press the fibers of pulp passing through the cylinder.

2. The combination of a cylinder; means for rotating the cylinder; meansfor feeding pulp into one end of the cylinder and discharging it fromthe opposite end thereof; and a series of disks located in the cylinder,each disk having perforations so that part of the material will passbetween the disks and the cylinder, while the other part of the materialwill pass through the perforations.

3. The combination of a cylinder; means for rotating the cylinder; meansfor feeding pulp into one end of the cylinder and dis-' ingthe fibers ofpulp in the manufacture of paper, of a cylinder having a feed opening atone end and a discharge opening at the opposite end; means forsupporting the cylinder; means for rotating the cylinder; and

a series of disks located within the cylinder,

said disks being arranged side by side, each disk having perforationstherein, each alternate disk having curved channels leading to theperforations for scooping up the material and directing it to theperforations in the disks, the other disks having radial passagesleading from the perforations to discharge the material towards theperiphery of the disks, insuring the constant flow of material throughthe cylinder and through the space between the disks.

5. The combination in apparatus for pressing the fibers of wood pulp inthe manufacture of paper, of means for supporting the I 6. Thecombination in apparatus for pressing the fibers of wood pulp in themanufacture of paper, of means for supporting the cylinder and means forrotating the same a feed opening at one end of the cylinder; a

discharge opening at the opposite end thereof; and a series of diskslocated side by side within the cylinder, the alternate disks being ofone diameter and the other disks being of another diameter, each diskhaving a series of perforations therein.

7. The combination in apparatus for pressing the fibers of wood pulp inthe manufacture of paper, of means for supporting the cylinder and meansfor rotating the same; a feed opening at one end of the cylinder and adischarge opening at the opposite end thereof, and a series of diskslocated side by side within the cylinder, the alternate disks being ofone diameter and the other disks being of another diameter, each diskhaving a series of perforations therein,'the disks at the feed endhaving ribstending to distribute the material as it is fed into thecylinder, and the end disk at the discharge end having ribs tending tolift the material towards the outlet.

CHARLES LAGE'Y HAMILTON;

